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TM 9-3416-245-14&P

DEPARTMENTOF THE ARMY TECHNICAL MANUAL

OPERATOR, ORGANIZATIONAL, DIRECT SUPPORT

AND GENERAL SUPPORT MAINTENANCE

MANUAL INCLUDING REPAIR PARTS LIST

FOR

ENGINE LATHE

MODEL NUMBER 2516-20

(3416-00-242-8824)

HEADQUARTERS,DEPARTMENT OF THE ARMY

JANUARY 1984

TM 9-3416-245-14&P

TECHNICAL MANUAL HEADQUARTERSDEPARTMENT OF THE ARMY

No. 9-3416-245-14&P WASHINGTON, DC, 20 January 1984

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this manual. If you find any mistakes or if you know of a way to improve theprocedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publicationsand Blank Forms), or DA Form 2028-2 located in back of this manual direct to: Commander, US ArmyArmament, Munitions and Chemical Command, ATTN: DRSMC-MAS-SE, Rock Island, IL, 61299. A replywill be furnished to you.

Operator, Organizational, Direct Support and General Support Maintenance Manual Including Repair Parts List for:

Engine LatheModel No. 2516-203416-00-242-8824

NOTE

This manual is published for the purpose of identifying an authorized commercial manual for theuse of the personnel to whom this equipment is issued.

Manufactured by: American Tool Company720 East Second StreetCincinnati, OH 45202

Procured under Contract No. DAAA09-78-C-5371

TM 9-3416-245-14&PINSTRUCTIONS FOR REQUISITIONING PARTS

NOT IDENTIFIED BY NSN

When requisitioning parts not identified by National Stock Number, it is mandatory that the following information befurnished the supply officer.

1 - Manufacturer's Federal Supply Code Number. 03078

2 - Manufacturer's Part Number exactly as listed herein.

3 - Manufacturer’s Part Number exactly as listed herein.

4 - Nomenclature exactly as listed herein, including dimensions, if necessary.

4 - Manufacturer's Model Number. 2516-20

5 - Manufacturer's Serial Number (End Item).

6 - Any other information such as Type, Frame Number, and Electrical Characteristics, if applicable.

7 - If DD Form 1348 is used, fill in all blocks except 4, 5, 6, and Remarks field in accordance with AR 725-50.

Complete Form as Follows:

(a) In blocks 4, 5, 6, list manufacturer's FederalSupply Code Number 03078 followed by a colon andmanufacturer's Part Number for the repair part.

(b) Complete Remarks field as follows:Noun: (nomenclature of repair part) For: NSN: 3416-00-242-8824Manufacturer: American Tool Company

720 East Second Street Cincinnati, OH 45202Model: 2516-20Serial: (of end item)

Any other pertinent information such as Frame Number,Type, Dimensions, etc.

TM 9-3416-245-14&P

Table of Contents

PageErecting

Unloading............................................................................................................................................................ 1Foundation.......................................................................................................................................................... 2Leveling ............................................................................................................................................................. 3Cleaning ............................................................................................................................................................. 3Oiling Instructions .............................................................................................................................................. 3Lubricating ......................................................................................................................................................... 4

Operating and Adjusting Starting .......................................................................................................................... 4Motor Drive ........................................................................................................................................................ 5Starting Clutch & Brake Unit .............................................................................................................................. 5Headstock .......................................................................................................................................................... 5Spindle Speed Selector ..................................................................................................................................... 6Gears ................................................................................................................................................................. 8Clutch and Brake Control Levers ....................................................................................................................... 10Apron ................................................................................................................................................................. 10Feed Clutch Levers ........................................................................................................................................... 114-Way Power Rapid Traverse ........................................................................................................................... 12Carriage ............................................................................................................................................................. 12Micrometer Ball Threading Stop ....................................................................................................................... 13Taper Attachment .............................................................................................................................................. 14Tailstock ............................................................................................................................................................ 15

Parts List ............................................................................................................................................................... 18

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ERECTING

UNLOADING. Hoisting weights are as follows:

14" x 30" between centers style "B"............................... .............................................................. 7900 lbs.

For each additional 24" between centers, add .............. ............................................. 525 lbs.

16" x 30" between centers style "C" ............................................................................................ 8200 lbs.


20" x 30" between centers style "D" ................................. ........................................................... 8500 lbs.


20" x 48" between centers style "E" ................................. ........................................................... 14000 lbs.

For each additional 24" between centers, add ........................................................... 775 lbs.

25" x 48" between centers style "F" ............................................................................................. 14600 lbs.

For each additional 24" between centers, add ............................................................................ 775 lbs.

CAUTION -When Hoisting.

For safety and convenience, two holes extend from front to rear of bed to allow use of hoistingbars. These bars should be of heat-treated alloy steel, 13/8" in diameter and 33" long for the 14"Style "B" through the 20" Style "D" Lathes and 2" in diameter and 36" long for the 20" Style "E"and 25" Style "F" Lathes. The two hoisting slings should be of 3w" chain of 11,400 lbs.capacity per sling for the 14" Style "B" through the 20" Style "E" Lathe, and of 1L2" chain of 19,000lbs. capacity per sling for the 25" Style "F" Lathe. Use wood blocks at the four points betweenchain and

Figure No. 1-Hoisting 16” x 102”

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bedway. Figure No. 1 illustrates this hoisting technique. Take a slight strain with the crane before hoisting to make sureall is secure and in balance.

"NOTE"

When moving lathe do not use SLING or PINCH BAR under the covers at the head end.

SETTING UP. Study foundation sent with machine.

FOUNDATION. A concrete foundation or floor is preferred, but a solid wood floor is satisfactory. When preparing footingfor setting up lathe, allow one inch (l") in either direction around the hold-down bolts to allow for variations or slight errors inlocating these bolts. Hold-down bolts pass through the center of the leveling screw bushings. A steel plate should beplaced between the leg and the foundation for supporting the leveling screw bushings.

Figure No 2 shows two different methods of using hold-down bolts in concrete. The right-hand diagram illustrates themethod by which bell bottom holes are drilled in the concrete floor, then the lathe, with hold-down bolts already fastenedloosely through legs, is positioned correctly on its foundation and finally molten lead is poured into the holes around hold-down bolts. Channels should be chipped into concrete to guide lead into holes.

The left-hand diagram shows method wherein new concrete foundation has been prepared for lathe and hold-down boltsare permanently sealed into foundation.

Hold-down bolts, washer plates and vertical pipes are all in place when concrete is poured.

Note:

Be sure that screw bracket for adjustably mounted motor is anchored to the foundation with hold-down bolts.

Figure No. 2-Two different applications of hold-down bolts in concrete

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LEVELING. Use a good PRECISION level about 18" long and graduated to no more than .001" per foot. (A commoncarpenter's or machinist's level is not accurate enough.) Place level longitudinally on front carriage wings, figure No. 3,and adjust leveling screws in headstock and tailstock legs until bed is level lengthwise at head-end, center and tail-endpositions, as shown. Then, with carriage close to headstock, place the level across the carriage wings with level squaredagainst the side of the compound rest. Adjust head-end leg leveling screws until level reading is obtained. With carriageclose to tailstock, place level across the carriage wings with level parallel to the side of the compound rest. Adjust tail-endleg leveling screws until level reading is obtained. When moving level from one position to another, do not turn it end forend. Retest at head-end position and then again at tail-end until readings differ by less than a full graduation.

Figure No. 3-Leveling Diagram

When lathe has a center leg, follow the same operations, and when the headstock end and the tail end are level, place thecarriage over the center leg and adjust screw bushings until the reading of the level differs less than a full graduation fromthat of the first two positions.

After machine is leveled tighten nuts on hold-down bolts until slight tension is secured. Again recheck level. Too muchtension will spring bed out of level. It is important to check level of lathe at least every six months to insure accurate work.

CLEANING. Do not move carriage until bed has been thoroughly cleaned and oiled by the manual pump on the apron.For cleaning the machine, kerosene is preferable to gasoline, as it does not evaporate and leave dried slushing compoundon finished surfaces. The kerosene must be absolutely clean. It is very important to clean the ways of the bed carefullyand thoroughly. Lubricate freely all bearing surfaces before operating machine. See that no oil holes are clogged.

OILING INSTRUCTIONS. The machine when shipped (unless dismantled) is lubricated according to directions appearingon the oiling instruction plate attached to the outside of the electrical control panel at the rear of the headstock.

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TM 9-3416-245-14&PTO LUBRICATE OBSERVE THE FOLLOWING:Head, Gear Box and Change Gearing-The head, gear box and change gearing are provided with automatic pumplubrication. This pump located in the bottom of the head unit provides the lubrication for all three of these units. Oilpassing through the flow gauge in front of the head shows that the pump is working. Fill reservoir through plug in gear boxwith a high grade machine oil, viscosity 275-290 seconds Saybolt at 100 degrees F. Drain and refill every six monthsthereafter. Keep oil at such a level so that it will be between the high and low limits on the gauge in the gear box while thehead is at rest.

Follow instructions on the oil filter at rear of head. Caution-If oil filter handle becomes too tight to turn by hand, removefilter and cleanse with kerosene and compressed air. DO NOT FORCE HANDLE.

Carriage and Apron--The carriage, apron, cross slide, cross feed nut and half nuts are provided with automaticpump lubrication for longitudinal feeding, cross feeding, and chasing. Before starting each day, operate theauxiliary pump at the bottom of the apron freely. Keep apron oil reservoir filled between the high and low limitson the gauge with Gear Oil, S.A.E. 80 (MII,-L-2105, NSN 9150-00-240-2246).

Tailend Bushing-Leadscrew bearing is an bushing which requires oiling about twice a year. The feed rod and power rapidtraverse rod anti-friction bearings are grease packed and should be checked once a year.

Taper Attachment-The anti-friction taper attachment is provided with permanent, oil-sealed ball bearings. Whenattachment is in use the dove-tail slide bearing should be oiled daily. The dove-tail slide bearing of the plain taperattachment should also be oiled daily when in use.

Hand Operated Mechanism-Lubricate once every week with a Machine Oil (MIL-L-2104, NSN 9150-00-231-9040).

Important-After lathe has been set up. ready for operation, or has been idle for two or three weeks, the auxiliary pump atbottom of apron should be operated freely to thoroughly lubricate the carriage vees. Also, the spindle should berun at slow speed at first to give the oil a chance to circulate.

Note

The lubricating periods mentioned apply to normal working service. In extreme conditionslubricate more often.

OPERATING AND ADJUSTING

STARTING-Observe the following instructions carefully: Before starting make sure that control levers are in their offposition, close to the lathe bed: that the two feed "drop" levers on the apron are in their lowered, or disengaged, positions:and that the top speed change lever is in its blue, or slow, position. Press starting button on the gear box to secure currentthru the main line.

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MOTOR DRIVE-All lathes are motor driven, with motor adjustably mounted at rear of head-end leg. The motor ismounted on a hinged plate that is provided with a screw for adjusting the belt tension.

STARTING CLUTCH AND BRAKE UNIT-The starting clutch and brake unit is a self-contained trouble-free unit bolted anddoweled to the headstock and under the swinging cover. It is automatically oiled by the circulating system of the head andmounted 100% on anti-friction bearings, thus requiring absolutely no attention from the operator.

Figure No. 4-Diagram of Clutch and Brake Unit

To adjust multiple disc clutch, swing open cover at head-end of Lathe, remove six bolts from pulley hub cover and removecover, loosen set-screw in nut designated by clutch adjustment in Figure No. 4 and turn nut until the toggle fingers can befelt to have ridden over the taper onto the flat, into engagement. Do not adjust clutch so tightly that snap cannot be felt.When adjustment has been completed, make sure that the set-screw has been tightened.

The multiple disc brake is self-adjusting for wear.

HEADSTOCK-The headstock is automatically oiled by a pump circulating system and all bearings are 100% anti-friction:therefore, no attention is necessary except following the previously outlined oiling instructions.

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Figure No. 5-Diagram showing means for adjusting Spindle Bearings

To adjust spindle bearings remove small cover marked "A" on rear of headstock and follow instructions on instruction platelocated above oil filter. This unit is self-locking because of the worm and worm wheel used to actuate the adjusting nut.

Attach the small face plate to nose of spindle. Put spindle in neutral by means of lever on top of speed selector housing.While making the adjustment hit end of spindle solidly with babbitt hammer. Rock spindle by means of the face plate whilemaking the adjustment. Tighten the bearings until a slight drag is felt on the face plate.

SPINDLE SPEED SELECTOR-All speeds are procured through the action of two levers whose positions clearly anddirectly indicate on the speed plate the R.P.M. of spindle at any setting, Figure No. 6. The top lever has three positions,one for the slow range, indicated in blue, one for the intermediate range, indicated in red, and one for the fast range,indicated in black. The bottom lever has nine positions, each of which is designated on the speed plate by a circle which inturn contains three speed rates, indicated in corresponding colors. To select a desired speed, place the lower lever at thecircle containing that rate, then place the upper lever in the blue, red or black position to correspond to the color indicatedin the circle.

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Figure No. 6-Direct Reading Speed Control, 27-Speed Head

THE NEUTRAL POINT for the spindle to be completely disengaged from the headstock gears is the top lever positionbetween the red and the black. At this point the notch on the lever hub coincides with the neutral line on the small plateattached to the top of the speed change unit.

SPINDLE SPEED CHANGE-Speed changes should be made only after the clutch has been disengaged, and preferablyjust before the spindle stops. Sometimes when shifting gears after spindle has come to a complete stop it is necessary tojog the spindle a bit with the head end control lever to allow gears to mesh.

REVERSE FOR LEADSCREW AND FEED ROD-Except when the leadscrew reverse from apron is supplied, theleadscrew and feed rod are reversed by operating the pull-rod at the end of the headstock inside the swinging cover. Thedirection plate on the pull-rod states that for left-hand threads the pull-rod should be pushed in, and for right-hand threads.pulled out: there is a center neutral position which completely disengages the change gears and the gear box from thespindle.

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CHANGE GEARS AND GEAR BOX-On all English lathes a standard English range is furnished and every change on theindex plate on the front of the box is obtained without changing any of the head end gears. The two outside gears, "A" and"B", Figure No. 7, should never be removed on English lathes. In addition to the standard range, other ranges may besecured by the addition of suitable gearing, namely:

Coarse leads. Transposed metric leads, coarse.Diametral pitch leads. Transposed module leads, standard.Transposed metric leads, standard. Transposed module leads, coarse.

To obtain these additional ranges, the change gears must be arranged to correspond to the stud, quadrant, and box gearsshown on the plate which is furnished for that particular range and which is attached to the inside of the swinging cover.

On all metric lathes a standard metric range is furnished, but to obtain the feeds and leads shown on the index plate on thefront of the box, the change gears must be arranged to correspond to the stud, quadrant, and box gears shown on theplate.

Figure No. 7-Head-End, showing Swinging Cover open and oil tight aluminum cover removed.

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In addition to the standard metric range, other ranges may be secured by the use of special gearing, namely:

Coarse leads. Transposed diametral pitch leads.Module leads, standard. Transposed English leads, standard.Module leads, coarse Transposed English leads, coarse.

To obtain these additional ranges, first arrange the change gears to correspond to the stud, quadrant, and box gearsshown on the plate which is furnished for that particular range and which is attached to the inside of the swinging cover.Second, make sure that for all metric leads and feeds the "A" gear, Figure No. 7, is on the cone shaft "F" and the smallconversion lever on the opposite side of the box, is at position No. 1: and make sure that for transposed English leads andfeeds the "A" gear is on the tumbler shaft "G" and the small conversion lever on the opposite side of the box is at positionNo. 2.

All special threads and leads for any of the fore-mentioned ranges are obtained through the use of special gears on thestud, quadrant, and box. When a special thread is furnished, an additional plate is attached to the inside of the cover toshow the change gears used and the correct lever positions.

To change any of the change gears, simply remove snap-ring with proper tool, slip gear off, fit the desired gear ontosleeve, and replace snap-ring.

To adjust quadrant gear along the slot, loosen the hex-head screw, slip gear along into place, and tighten screw.

Figure No. 8-English Quick Change totally enclosed gear box

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Thread, lead and feed selections of any range are made through the gear box by manipulating the tumbler lever andselector dial in combination with the two shifter levers. The tumbler lever and the selector dial working together select anyone of eleven different changes representing the eleven columns on index plate. The two shifter levers give six differenttwo letter combinations representing the six rows on the index plate. Any desired thread, lead or feed can be quicklyselected by setting tumbler lever to the number corresponding to the column number in which the desired thread, lead orfeed is found and by setting both shifter levers to give the two letter combination indicated by the row in which the desiredthread, lead or feed is located. The tumbler lever and selector dial shifting is accomplished by shifting the tumbler leverinto the "OUT" position, by rotating the selector dial until desired tumbler position number is opposite top center line andfinally by shifting the tumbler lever from "OUT" position to the same number position as that indicated by selector dial.

Thread, lead and feed changes may best be made when spindle is running at moderate speed as this permits the gears toengage more readily. Make certain that tumbler lever is already shifted into its "OUT" position before selector dial isrotated; tumbler lever has plunger latch for self locking in each position necessitating an outward pull on this handle beforeshifting.

FEED ROD AND LEADSCREW--The feed rod and leadscrew are independent of one another and when one is runningthe other is stationary. To change the drive from one to the other merely position the small lever, Figure No. 8 on the rightside of the gear box, to read "FEED" or "THREAD".

The feed rod is provided with a ball spring safety clutch immediately inside the feed box. This clutch will not needadjustment. The condition of overload must be removed before it will automatically reset.

On the feed rod there are two adjustable collars for automatically stopping the longitudinal feeding of the carriage in eitherdirection.

CLUTCH AND BRAKE CONTROL LEVERS-There are two levers for starting and stopping the spindle. One is positionedclose to the headstock for use when changing speeds, and the other is on the right-hand side of the apron. To engageclutch the lever is moved toward operator, and to disengage clutch and engage brake the lever is moved away.

APRON-The apron, Figure No. 9, is driven by either the feed rod or the leadscrew, depending upon whether the double-bevel pinion or the half-nuts are engaged. The double-bevel pinion is actuated by the forward-reverse lever on the front ofthe apron and controls the direction of feeding, both longitudinal and cross. The half-nuts are engaged by the half-nutlever, but the direction of travel is controlled by the direction of rotation of the leadscrew. These two levers are interlockingand one must be in its

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neutral or disengaged position before the other can be moved. The neutral position for the forward-reverse lever is thecenter hole, and the disengaged position for the half-nut lever is at the top of its arc.

Figure No. 9-Front View of Apron

The instruction plate over the chasing dial on the extreme right of the apron clearly states the correct procedure forengaging the half-nuts. (There is no chasing dial furnished on metric lathes. Half-nuts remain engaged and carriage isreturned by either leadscrew reverse or reversing motor).

FEED CLUTCH LEVERS-The two drop levers on the front of the apron actuate clutches which control the longitudinal feedof the carriage and the cross feed of the tool slide. The left-hand lever controls the longitudinal and the right the crossfeeding. When the control levers are in the raised position the clutches are engaged, and in the dropped position,disengaged.

Both the longitudinal feed and cross feed are provided with safeties so that no damage will occur should the carriage orcross slide be fed into an obstruction

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TM 9-3416-245-14&Por allowed to feed to its limit of travel.

To adjust clutch stop spindle, raise lever to engagedposition, remove four screws holding housing andremove housing completely.

Make sure that the anti-friction thrust washer insideadjusting nut "A", Figure No. 10 has not fallen off shaft.Adjust nut "A" for desired tension and then replacehousing.

Figure No. 10-Front View of Apron with front coverplate removed exposing all adjusting members

LEADSCREW REVERSE FROM APRON-When the direction of the leadscrew is reversed from the apron, a small lever isemployed at the top right-hand side of the apron. This lever has three positions: up, when cutting left-hand threads;center, or neutral: and down when cutting right-hand threads. With this attachment adjustable stops are provided forchasing in both directions.

Use this reverse only for the leadscrew when chasing threads. The forward-reverse lever on the apron should always beused for reversing the direction of feeding.

Do not attempt to reverse leadscrew when spindle speed is over 200 R.P.M. When over this speed, disengage clutch thenbrake spindle to a moderate speed before reversing.

4-WAY POWER RAPID TRAVERSE-When the 4-way power rapid traverse is furnished two independently operateddirectional levers are used. The carriage longitudinal traverse is actuated by a convenient control lever at the left side ofthe apron, while the control lever for the tool rest cross travel is located at the right side of the apron, figure No. 9. Theselevers are separated to eliminate the possibility of engaging the wrong traverse and also to permit both traverses beingoperated simultaneously. A further safety feature is provided by spring actuated safety clutches which control thetraverses. These disc clutches are engaged and disengaged by spring action applied by the actuation of the controllevers, as a result the traverses operate only while the operator holds the levers in operating positions. Should thecarriage or tool rest be accidentally run into an obstruction the clutches will simply slip. See Figure No. 11.

If either the longitudinal or the cross slide power rapid traverse is furnished alone, the principle of operation is the same asdescribed above.

CARRIAGE-The carriage is rigidly secured to the bed by taper gibs under the front and rear outer vees. The taper gibs areadjusted by means of their adjusting screws. Turning screws to the right tightens the gibs, and to the left loosens them.

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Figure No. 11-Diagram of Power Traverse Safety Clutch Unit

The bottom slide is secured to the carriage bridge and the top slide to the swivel also by means of adjustable taper gibs,located on the left-hand sides. In the slot on each side of the swivel are four clamp nuts for tightening the swivel to thebottom slide. The swivel can be swung in a 360° arc.

The carriage is clamped to the bed by means of the square-head screw located on the front, right-hand carriage wing.Directly behind both micrometer dials is found a knurled nut for binding the graduated dials to the screws. The knurledcollar on the dial is merely for convenience in setting.

MICROMETER BALL THREADING STOP-A micrometer ball threading stop is provided on standard engine lathes tofacilitate threading operations. This stop permits the withdrawal of the tool from the cut up to 3 revolutions of the crossfeed screw without disturbing the tool setting. This permits withdrawal of tool at the end of each cut and the return of thetool to the original depth of cut. Additional depth may be secured by further adjustment of the compound rest top slidescrew. If this is not convenient the stop may be loosely set and used as a "slip stop" whereby the handwheel is turned pastthe stopping point by the amount required for the next depth of cut.

Figure No. 12-Hardened cross feed screw with large direct reading micrometer dial, automaticallyoiled, bronze compensating nut and Micrometer Ball Threading Stop

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To adjust the cross feed nut for wear and accompanying backlash, loosen the hex-head screw "E" in the center of thecarriage bridge just behind the swivel about a quarter turn and turn small hollow-head screw "F" to the right to draw up theadjusting wedge, figure No. 12. The correct procedure is to adjust the small screw a quarter turn and then to tap the hex-head screw with a babbitt or wood block, at the same time turning the cross feed hand wheel to the right and left to feel forthe correct adjustment. When the wedge has been drawn up a sufficient amount tighten the hex-head screw. Do notloosen the large hollow-head screw "G" at any time. The hardened cross feed screw confines all the wear to the nut, andfor this reason the nut may be adjusted at any point along the screw.

On carriages without taper attachment, when backlash develops because of end play in the anti-friction thrust bearings onthe screw, tighten the round nut "A" at the front end of the screw. On carriages with the taper attachment, unscrew thesquare plate "M", figure No. 13, directly over the back end of the screw, loosen two small set-screws in round nut, andadjust nut until end play is removed.

Figure No. 13-View of Plain Bearing TaperAttachments with guards removed.

TAPER ATTACHMENT--Either the plain bearing or theball bearing taper attachment, Figure No. 13 is easilyand quickly set up for action. For chasing taperedthreads set up for adjustable cross feed control(telescopic type).

Loosen draw bar binder nut "C", the two swivel nuts "'F"and screw "A", and nuts "B". By means of the knurledknob "H" set swivel to desired taper, either inches perfoot at one

end or degrees of angle at the opposite end of swivel base, then tighten nuts "F" and screw "A". Also tighten dog clampnuts "D". To change from taper to straight turning loosen screw "A" and nuts "F", then set swivel straight. Next, tightenscrew "A", the two nuts "B" and the two nuts "F". Now tighten nut "C" and loosen the two nuts "D". Make sure that nut "C"is tight and the two nuts "D" are loose when turning straight work.

For turning taper, set up for locked cross feed control (rigid type). Loosen screw "A" and nuts "B". Set swivel to requiredangle. Tighten screw "A", loosen nut "C", tighten nuts "D" and screw plug in center of hex screw "E". See Figures No. 12and 13.

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TAILSTOCK-The tailstock, figure No. 14, is provided with four clamping bolts for binding it securely to the bed. Thespindle is clamped and unclamped in the barrel by raising or lowering the clamping lever at the front of the tailstock.

Both the stationary and combination stationary/live center spindles are provided with tang slots for easy removal of thecenter and ordinary drilling operations. To remove either spindle, run it all of the way out until the pinion is disengagedfrom the rack and then carefully pull remainder of distance by hand. A key at the front end of the combination spindlelocks the center for stationary operation. Be sure key is always locked tightly in place.

The tailstock has its own plunger pump lubrication and the reservoir should be kept filled between the high and low limitson the gauge with Gear Oil, S.A.E. 80 (MIL-L2105, NTSTI 9150-00-240-2246).

The tailstock micrometer dial reads spindle advance in 1/32" increments and is adjustable to zero at any position of thespindle.

Figure No. 14-Tailstock

There is a 1/8” set-over adjustment possible. To adjust the center alignment from the front to the rear, loosen the hollowhex screw on the rear side two or three turns, adjust the hollow hex screw on the front side to the right until the desiredposition is obtained, and then tighten the screw on the rear side.

To adjust the center alignment from the rear to the front, loosen the hollow hex screw on the front side two or three turns,adjust the hollow hex screw on the rear

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side to the right until the desired position is obtained and then tighten the screw at the front.

These same operations hold true for the built-in anti-friction center tailstock except that of removing the center. The anti-friction mounted center, by itself, is non-removable, and must be removed along with its complete anti-friction unit. To dothis, remove the plate on the front end of the spindle and draw out the complete anti-friction unit by the center. If the unit istoo tight to draw out, remove the spindle and then tap it out. However, it will be rare, if ever, that this center unit must beremoved. Even when regrinding the center is left in position and rotated by means of a thin belt placed around thecylindrical portion.

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Figure No. 15 - Engine Lathe

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TM 9-3416-245-14&P__________________________________________PARTS LIST____________________________________________

Fig. G1 Headstock Gearing-27 Speeds

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HEADSTOCK GEARING-27 SPEEDS

Part No. Part Name Part No. Part Name Part No. Part Name

G1-1 Nut G1-44 Nut G1-87 RingG1-2 Nut G1-45 Shaft G1-88 KeyG1-3 Sleeve G1-46 Gear-16T G1-89 HubG1-4 Sling G1-47 Bearing G1-90 BearingG1-5 Plates G1-48 Key G1-91 QuadrantG1-6 Plates G1-49 Shaft G1-92 SpacerG1-7 Retainer G1-50 Nut G1-93 BearingG1-8 Spool G1-51 Plug G1-94 SpacerG1-9 Key G1-52 Bearing G1-95 SleeveG1-10 Retainer G1-53 Cover G1-96 PlateG1-11 Collar G1-54 Bearing G1-97 KeyG1-12 Plates G1-55 Key G1-98 Gear-64TG1-13 Housing G1-56 Retainer G1-99 BearingG1-14 Ring G1-57 Bearing G1-100 SpacerG1-15 Bearing G1-58 Sheave G1-101 ShaftG1-16 Gear-53T G1-59 Bearing G1-102 ShaftG1-17 Gear-37T G1-60 Plate G1-103 Gear-64TG1-18 Gear-32T G1-61 Hub G1-104 SpacerG1-19 Gear-31T G1-62 Hub G1-105 KeyG1-20 Gear-37T G1-63 Pin G1-106 Gear-61TG1-21 Key G1-64 Finger G1-107 BearingG1-22 Gear-34T G1-65 Shaft G1-108 Gear-44TG1-23 Gear-35T G1-66 Plug G1-109 SpacerG1-24 Gear-42T G1-67 Bearing G1-110 SpacerG1-25 Ring G1-68 Plug G1-11 BearingG1-26 Shaft G1-69 Spindle G1-112 Gear-60TG1-27 Bearing G1-70 Spindle G1-113 KeyG1-28 Spacer G1-71 Nut G1-114 BearingG1-29 Spacer G1-72 Bearing G1-115 WormG1-30 Bearing G1-73 Gear-37T G1-116 ShaftG1-31 Nut & Lockwasher G1-74 Gear-59T G1-117 WheelG1-32 Gear-52T G1-75 Key G1-118 SpacerG1-33 Spacer G1-76 Gear-48T G1-119 Gear-49TG1-34 Gear-61T G1-77 Nut & Lockwasher G1-120 KeyG1-35 Spacer G1-78 Shaft G1-121 Gear-61TG1-36 Pin G1-79 Gear-38T G1-122 BearingG1-37 Bearing G1-80 Plug G1-123 SlingG1-38 Bearing G1-81 Nut G1-124 HeadstockG1-39 Spacer G1-82 Cover G1-125 CoverG1-40 Bearing G1-83 Sling G1-126 Lock NutG1-41 Bracket G1-84 Gear-60T G1-127 KeyG1-42 Bearing G1-85 Spacer G1-128 BushingG1-43 Gear-55T G1-86 Ring G1-129 Center

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TM 9-3416-245-14&P__________________________________________PARTS LIST____________________________________________

Fig. G2 Headstock Gear Shifting-27 Speeds

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TM 9-3416-245-14&PLATHE

HEADSTOCK GEAR SHIFTING-18 & 27 SPEEDS

Part No. Part Name Part No. Part Name

G2-1 Spring G2-28 PinG2-2 Post G2-29 LinkG2-3 Bar G2-30 SectorG2-4 Key G2-31 StudG2-5 Nut G2-32 ShaftG2-6 Bearing G2-33 NutG2-7 Nut & Lockwasher G2-34 RetainerG2-8 Pin G2-35 Nut & WasherG2-9 Bearing G2-36 BearingG2-10 Bearing G2-37 CamG2-11 Gear G2-38 BracketG2-12 Key G2-39 NutG2-13 Shaft G2-40 BearingG2-14 Shaft G2-41 PinG2-15 Bearing G2-42 SpacerG2-16 Detent G2-43 CamG2-17 Roller G2-44 BearingG2-18 Pin G2-45 PinG2-19 Spacer G2-46 GearG2-20 Cam G2-47 NutG2-21 Cam G2-48 StudG2-22 Lever G2-49 BearingG2-23 Washer G2-50 ShaftG2-24 Bearing G2-51 ShaftG2-25 Spring G2-52 PinionG2-26 Bearing G2-53 BracketG2-27 Post

HEADSTOCK GEARING -9 SPEEDS HEADSTOCK GEARING -18 SPEEDS


G3-1 Gear-37T G4-1 Gear-37TG3-2 Spacer G4-2 Gear-33TG3-3 Spacer G4-3 Gear-36T

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TM 9-3416-245-14&P

PARTS LIST

Fig. G5 Headstock Gear Shifting-18-27 Speeds



G5-1 Collar G5-13 PinG5-2 Lever G5-14 RollerG5-3 Shoe G5-15 PinG5-4 Lever G5-16 WasherG5-5 Shoe G5-17 PlugG5-6 Shaft G5-18 PlateG5-7 Fork G5-19 GasketG5-8 Pin G5-20 BlockG5-9 Shoe G5-21 PinG5-10 Yoke G5-22 ShaftG5-11 Pin G5-23 BracketG 5-12 Stud G5-24 Shaft

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TM 9-3416-245-14&PLATHE

Fig. G6 Headstock Gear Shifting-18-27 Speeds



G6-1 Bearing G6-21 BearingG6-2 Sleeve G6-22 ShaftG6-3 Washer G6-23 RackG6-4 Roller G6-24 GasketG6-5 Pin G6-25 PlateG6-6 Bracket G6-26 SpacerG6-7 Stud G6-27 KnobG6-8 Lever G6- 28 LeverG6-9 Lever G6-29 RingG6-10 Collar G6-30 SeatG6-11 Fork G6-31 SeatG6-12 Key G6-32 StudG06-13 Shaft G6-33 CrankG6-14 Shoe G6-34 BearingG6-15 Fork G6-35 KnobG6-16 Cover G6-36 LeverG8-17 Gasket G6-37 ShaftG6-18 Nut G6-38 RingG6-19 Shaft G6-39 Gear06-20 Worm G6-40 Nut

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TM 9-3416-245-14&PPARTS LIST

Fig G7 Headstock Gear Shifting-9 Speeds

HEADSTOCK GEAR SHIFTING-9 SPEEDS


G7-1 Bar G7-6 StudG7-2 Pin G7-7 SectorG7-3 Bracket G7-8 PlateG7-4 Shaft G7-9 LeverG7-5 Screw G7-10 Link

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TM 9-3416-245-14&PLATHE

Fig. G8 Headstock with Leadscrew Reverse

HEADSTOCK W/L.S.R.


G8-1 Sling G8-22 Bearing G8-43 GearGB-2 Nut G8-23 Nut G8-44 PostG8-3 Spacer G8-24 Spacer G8-45 SpacerG8-4 Plate G8-25 Spacer G8-46 KeyG8-5 Key G8-26 Spacer G8-47 HubG8-6 Bearing G8-27 Shoe G8-48 BearingG8-7 Gear G8-28 Lever G8-49 ScrewG8-8 Spacer G8-29 Sleeve G8-50 WasherG8-9 Spacer G8-30 Bracket G8-51 RingG8-10 Key G8-31 Spacer G8-52 RingG8-11 Bearing G8-32 Gear GB-53 ShaftG8-12 Pin G8-33 Pin G8-54 BearingG8-13 Gear G8-34 Rod G8-55 KeyG8-14 Bearing G8-35 Ball G8-56 HubG8-15 Spacer G8-36 Spring G8-57 RingG8-16 Shaft G8-37 Cap G8-58 GearG8-17 Gear G8-38 Spacer G8-59 BlockG8-18 Gear G8-39 Bearing G8-60 LeverG8-19 Key G8-40 Sleeve G8-61 RodG8-20 Gear G8-41 PlugG8-21 Key G8-42 Nut

25


Fig. G9 Head End Covers

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TM 9-3416-245-14&P

LATHE

Fig. G10 Change Gear CoversHEAD END AND CHANGE GEAR COVERS


G9-1 Adapter G10-1 Gasket G10-20 Gear-90TG9-2 Cover G10-2 Frame G10-21 RodG9-3 Frame G10-3 Bearing G10-22 TubeG9-4 PlateG9-5 Frame G10-4 Gasket G10-23 KeyG9-6 Cover G10-5 Cover G10-24 ForkG9-7 Collar G10-6 Gasket G10-25 CoverG9-8 Pin G10-7 Ring G10-26 BearingG9-9 Key G10-8 Plug G10-27 SpacerG9-10 Cover G10-9 Pin G10-28 CrankG9-11 Hinge G10-10 Shoe G10-29 TubeG9-12 Latch G10-11 Shaft G10-30 BlockG9-13 PlungerG9-14 Spring G10-12 Handle G10-31 TubeG9-15 Knob G10-13 Bracket G10-32 FittingG9-16 Bushing G10-14 Washer G10-33 TubeG9-17 Bushing G10-15 Cover G10-34 GasketG9-18 Support G10-16 Stud G10-35 FittingG9-19 Pin G10-17 Plug G10-36 BlockG9-20 Eyebolt G10-18 Screw G10-37 GasketG9-21 GuardG9-22 Plate G10-19 TubeG9-23 PinG9-24 HingeG9-25 KeyG9-26 FrameG9-27 CoverG9-28 PlateG9-29 Plate

27


Fig. G11 Feed Box Gearing – English

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TM 9-3416-245-14&P

LATHEFEED BOX GEARING-ENGLISH


G11-1 Cover G11-53 Bearing G11-105 RodG11-2 Ring G11-54 Pinion-32T G11-106 ShaftG11-3 Plug G11-55 Bearing G11-107 SealG11-4 Bearing G11-56 Bearing G11-108 BearingG11-5 Spacer G11-57 Key G11-109 ShaftG11-6 Shaft G11-58 Stud G11-110 ShaftG11-7 Frame G11-59 Plate G11-111 SealG11-8 Key G11-60 Tumbler G11-112 SpacerG11-9 Spacer G11-61 Gear-50T G11-113 BearingG11-10 Bearing G11-62 Plug G11-114 RingG11-11 Plug G11-63 Bearing G11-115 SpacerG11-12 Pin G11-64 Plate G11-116 ClutchG11-13 Plate G11-65 Gear-32T G11-117 ClutchG11-14 Plug G11-66 Gear-36T G11-118 BallG11-15 Seal G11-67 Gear-38T G11-119 Gear-45TG11-16 Plate G11-68 Gear-40T G11-120 KeyG11-17 Gasket G11-69 Gear-44T G11-121 BushingG11-18 Cover G11-70 Gear-46T G11-122 SpringG11-19 Gasket G11-71 Gear-48T G11-123 BearingG11-20 Box G11-72 Gear-52T G11-124 SpacerG11-21 Gear-120T G11-73 Gear-54T G11-125 ShaftG11-22 Bearing G11-74 Gear-56T G11-126 Nut & LockwasherG11-23 Spacer G11-75 Gear-60T G11-127 Gear-60TG11-24 Ring G11-76 Gear-32T G11-128 BearingG11-25 Hub G11-77 Key G11-129 SpacerG11-26 Ring G11-78 Shaft G11-130 BearingG11-27 Key G11-79 Plug G11-131 Gear-30TG11-28 Shaft G11-80 Adapter G11-132 SpacerG11-29 Key G11-81 Feed Box G11-133 Gear-45T -60T -30TG11-30 Bearing G11-82 Cover G11-134 SpacerG11-31 Shaft G11-83 Bearing G111-135 CollarG11-32 Gear-52T G11-84 Spacer G11-136 SpacerG11-33 Ring G11-85 Gear-60T G11-137 BearingG11-34 Bearing G11-86 Bearing G1I-138 KeyG11-35 Gear-45T G11-87 Bearing G11-139 Gear-45TG11-36 Spacer G11-88 Shaft G11-140 GasketG11-37 Gear-45T G11-89 Bearing G11l-141 Feed BoxG11-38 Nut & Lockwasher G11-90 Spacer G11-142 SealG11-39 Shaft G11-91 Retainer G11-143 RingG11-40 Key G11-92 Bearing G11-144 BearingG11-41 Bearing G11-93 Spacer G11-145 KeyG11-42 Bearing G11-94 Shaft G11-146 PinionG11-43 Washer G11-95 Bearing G11-147 SlingG11-44 Gear-45T -30T G11-96 Ring G11-148 RetainerG11-45 Spacer G11-97 Gear G11-149 GearG11-46 Key G11-98 Clutch G11-150 ShaftG11-47 Nut & Lockwasher G11-99 Bearing G11-151 SpacerG11-48 Gear-45T G11-100 Bearing G11-152 KeyG11-49 Ring G11-101 Bushing G11-153 ShaftG11-50 Key G11-102 Seal G11-154 RingG11-51 Shaft G11-103 Shaft G11-155 BearingG11-52 Ring G11-104 Screw G11-156 Gear

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TM 9-3416-245-14&P

Fig. G12 Feed Box gear Shifting – English

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TM 9-3416-245-14&P

LATHEFEED BOX GEAR SHIFTING-ENGLISH


G12-1 Plug G12-29 Detent G12-57 CoverG12-2 Block G12-30 Collar G12-58 HandleG12-3 Tube G12-31 Control Panel G12-59 SpringG12-4 Rod G12-32 Cover G12-60 BushingG12-5 Rod G12-33 Gasket G12-61 PinG12-6 Fork G12-34 Gasket G12-62 KnobG12-7 Detent G12-35 Bearing G12-63 LeverG12-8 Rod G12-36 Stud G12-64 BracketG12-9 Crank G12-37 Washer G12-65 StudG12-10 Pin G12-38 Gear-32T -32T G12-66 KnobG12-11 Stud G12-39 Gear-32T G12-67 DialG12-12 Pipe G12-40 Bearing G12-68 SealG12-13 Plug G12-41 Stud G12-69 Screw & LockscrewG12-14 Ring G12-42 Gear G12-70 BallG12-15 Washer G12-43 Bearing G12-71 SpringG12-16 Bearing G12-44 Key G12-72 CollarG12-17 Spacer G12-45 Shaft G12-73 GearG12-18 Fork G12-48 Stud G12-74 DetentG12-19 Shaft G12-47 Bearing G12-75 ShaftG12-20 Screw G12-48 Stud G12-76 KeyG12-21 Stud G12-49 Bearing G12-77 LeverG12-22 Seal G12-50 Pinion G12-78 KnobG12-23 Lockwasher G12-51 Fork G12-79 BallG12-24 Lever G12-52 Pin G12-80 SpringG12-25 Bearing G12-53 Bearing G12-81 PlateG12-26 Fork G12-54 Pin G12-82 GlassG12-27 Pin G12-55 Fork G12-83 GasketG12-28 Crank G12-56 Crank

Fig. G13 Feed Box Gear Shifting -- Metric

FEED BOX GEAR SHIFTING-METRIC

Part No. Part Name

G13-1 StudG13-2 WasherG13-3 BushingG13-4 KeyG13-5 LeverG13-6 RingG13-7 ShaftG13-8 ForkG13-9 BushingG13-10 LeverG13-11 LeverG13-12 ScrewG13-13 PinG13-14 ForkG13-15 Link

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TM 9-3416-245-14&P

PARTS LIST

Fig. G14 Feed Box Gearing--Metric

FEED BOX GEARING-METRIC


G14-1 Key G14-23 RetainerG14-2 Ring G14-24 ClutchG14-3 Shaft G14-25 HubG14-4 Gear-45T G14-26 KeyG14-5 Key G14-27 Gear-60TG14-6 Bearing G14-28 SpacerG14-7 Ring G14-29 BearingG14-8 Key G14-30 RingG14-9 Spacer G14-31 Nut & LockwasherG14-10 Ring G14-32 SpacerG14-11 Shaft G14-33 Gear-60TG14-12 Spacer G14-34 Gear-56TG14-13 Bearing G14-35 Gear-54TG14-14 Ring G14-36 Gear-52TG14-15 Bearing G14-37 Gear-48TG14-16 Gear-60T G14-38 Gear-46TG14-17 Key G14-39 Gear-44TG14-18 Hub G14-40 Gear-40TG14-19 Clutch G14-41 Gear-38TG14-20 Bearing G14-42 Gear-36TG14-21 Retainer G14-43 Gear-32TG14-22 Bearing

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TM 9-3416-245-14&P

LATHE

Fig. G15 Apron—Top View

APRON


G15-1 Collar* G15-21 CollarG15-2 Key* G15-22 DetentG15-3 Bearing* G15-23 ShaftG15-4 Plug# G15-24 BearingG15-5 Ball G15-25 PlateG15-6 Guide G15-26 CollarG15-7 Shaft G15-27 KnobG15-8 Cam G15-28 LeverG15-9 Key G15-29 Knob*G15-10 Housing G15-30 Lever*G15-11 Cam G15-31 PlateG15-12 Key G15-32 SealG15-13 Lever G15-33 Hub*G15-14 Knob G15-34 Sleeve*G15-15 Housing G15-35 Key*G15-16 Key G15-36 RingG15-17 Lever G15-37 Plug#G15-18 Knob G15-38 Nut*G15-19 Ball G15-39 BearingG15-20 Guide G15-40 Bushing**With Leadscrew Reverse Only#Without Leadscrew Reverse Only

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TM 9-3416-245-14&P

Fig. G16 Apron – Front, Sectional and Plan Views

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TM 9-3416-245-14&P

LATHE

APRON


G16-1 Adapter G16-41 LeverG16-2 Pinion G16-42 BushingG16-3 Spacer G16-43 PlugG16-4 Pinion G16-44 RodG16-5 Sleeve G16-45 WasherG16-6 Seal G16-46 RingG16-7 Collar G16-47 ScrewG16-8 Seal G16-48 ShoeG16-9 Nut G16-49 BushingG16-10 Bearing G16-50 ArmG16-11 Key G16-51 TubeG16-12 Rod G16-52 StudG16-13 Bearing G16-53 SpringG16-14 Seal G16-54 PumpG16-15 Block G16-55 SpringG16-16 Link G16-56 PumpG16-17 Bracket G16-57 StudG16-18 Pin G16-58 TubeG16-19 Post G16-59 ValveG16-20 Lever G16-60 ArmG16-21 Tubes G16-61 KnobG16-22 Plate G16-62 BodyG16-23 Manifold G16-63 ManifoldG16-24 Cam G16-64 BushingG16-25 Spring G16-65 CamG16-26 Screw G16-66 BlockG16-27 Plunger G16-67 PinG16-28 Ring G16-68 PostG16-29 Bushing G16-69 CamG16-30 Rod G16-70 BallG16-31 Bearing G16-71 LeverG16-32 Screw G16-72 BearingG16-33 Plate G16-73 WasherG16-34 Gasket G16-74 BearingG16-35 Bracket G16-75 ShaftG16-36 Ring G16-76 SpacerG16-37 Nut G16-77 GearG16-38 Washer G16-78 BallG16-39 Ring G16-79 SpringG16-40 Pin

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TM 9-3416-245-14&P

Fig. G17 Apron-End and Sectional Views

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TM 9-3416-245-14&PLATHE

APRON


G17-1 Ring G17-56 ClutchG17-2 Shaft G17-57 KeyG17-3 Screw G17-58 ShimG17-4 Gib G17-59 SpacerG17-5 Bearing G17-60 BearingG17-6 Block G17-61 SpacerG17-7 Locknut G17-62 PinionG17-8 Plug G17-63 CoverG17-9 Bearing G17-64 BearingG17-10 Bearing G17-65 ShaftG17-11 Bearing G17-66 SpacerG17-12 Shaft G17-67 WasherG17-13 Ring G17-68 GearG17-14 Key G17-69 ValveG17-15 Fork G17-70 PlugG17-16 Shoe G17-71 GasketG17-17 Cover G17-72 Strainer & Intake ValveG17-18 Gasket G17-73 CoverG17-19 Key G17-74 GearG17-20 Gear G17-75 SpacerG17-21 Gear G17-76 BearingG17-22 Bearing G17-77 RetainerG17-23 Retainer G17-78 Nut & WasherG17-24 Locknut G17-79 LeverG17-25 Sleeve G17-80 WasherG17-26 Seal G17-81 PostG17-27 Gear G17-82 Pump BodyG17-28 Key G17-83 PlungerG17-29 Bearing G17-84 BushingG17-30 Seal G17-85 KnobG17-31 Sleeve G17-86 SpringG17-32 Screw G17-87 SealG17-33 Spring G17-88 BearingG17-34 Plunger G17-89 Nut & WasherG17-35 Block G17-90 PlugG17-36 Bearing G17-91 BearingG17-37 Seal G17-92 KeyG17-38 Handle G17-93 GearG17-39 Handwheel G17-94 SpacerG17-40 Bearing G17-95 PinionG17-41 Key G17-96 GearG17-42 Clutch G17-97 BearingG17-43 Nut G17-98 BearingG17-44 Bearing G17-99 RingG17-45 Bearing G17-100 AdapterG17-46 Screw G17-101 BearingG17-47 Spacer G17-102 SpringG17-48 Washer G17-103 ShaftG17-49 Ring G17-104 NutG17-50 Dial G17-105 PumpG17-51 Bracket G17-106 PlugG17-52 Shim G17-107 BearingG17-53 Lever G17-108 ShaftG17-54 Knob G17-109 CollarG17-55 Spring G17-110 Gasket

37

TM 9-3416-245-14&P

Fig. G18 Apron-End and Sectional Views

38

TM 9-3416-245-14&P

LATHE

APRON


G18-1 Lever G18-43 AdapterG18-2 Handle G18-44 BearingG18-3 Knob G18-45 SpringG18-4 Cam G18-46 NutG18-5 Washer G18-47 BearingG18-6 Seal G18-48 KeyG18-7 Ring G18-49 CollarG18-8 Shaft G18-50 ManifoldG18-9 Seal G18-51 WasherG18-10 Shaft G18-52 SleeveG18-11 Ring G18-53 BearingG18-12 Washer G18-54 ShaftG18-13 Pin G18-55 SpacerG18-14 Knob G18-56 PlateG18-15 Handle G18-57 GlassG18-16 Bushing G18-58 PumpG18-17 Spring G18-59 GasketG18-18 Lever G18-60 RingG18-19 Ring G18-61 RetainerG18-20 Cover G18-62 BearingG18-21 Ring G18-63 GearG18-22 Shoe G18-64 ForkG18-23 Block G18-65 GearG18-24 Bearing G18-66 ForkG18-25 Screw G18-67 GearG18-26 Gasket G18-68 BearingG18-27 Pin G18-69 SpacerG18-28 Washer G18-70 ShaftG18-29 Lever G18-71 GearG18-30 Pin G18-72 KeyG18-31 Bearing G18-73 SpacerG18-32 Roller G18-74 PlugG18-33 Bearing G18-75 Nut & WasherG18-34 Stud G18-76 BearingG18-35 Nut G18-77 BearingG18-36 Washer G18-78 StudG18-37 Key G18-79 SpacerG18-38 Clamp G18-80 GearG18-39 Clamp G18-81 BearingG18-40 Gib G18-82 GearG18-41 Screw G18-83 BearingG18-42 Block

39


Fig. G19 Apron with Longitudinal and Cross Traverse

Fig. G20 Apron with Cross Traverse Only

Fig. G21 Apron with Longitudinal Traverse Only

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TM 9-3416-245-14&P

LATHEAPRON W/LONG. AND CROSS TRAVERSE


G19-1 Fork G19-21 SleeveG19-2 Rod G19-22 SpringG19-3 Shaft G19-23 SpacerG19-4 Key G19-24 RodG19-5 Bearing G19-25 Stop ScrewG19-6 Nut G19-26 BushingG19-7 Retainer G19-27 BearingG19-8 Retainer G19-28 PlugG19-9 Gear-32T G19-29 BearingG19-10 Bearing G19-30 BearingG19-11 Gear G19-31 GearG19-12 Plate G19-32 BearingG19-13 Plates G19-33 PlateG19-14 Plates G19-34 KeyG19-15 Spring G19-35 NutG19-16 Spacer G19-36 BearingG19-17 Nut G19-37 GearG19-18 Rod G19-38 PlateG19-19 Plates G19-39 BearingG19-20 Plates G19-40 Shoe

APRON W/CROSS TRAVERSE ONLY APRON W/LONG TRAVERSE ONLY

Part No. Part Name Part No. Part Name Part No. Part Name Part No. Part Name

G20-1 Retainer G20-14 Spacer G21-1 Fork G21-14 PlatesG20-2 Retainer G20-15 Rod G21-2 Rod G21-15 SpringG20-3 Nut G20-16 Stop Screw G21-3 Shaft G21-16 SpacerG20-4 Bearing G20-17 Bushing G21-4 Key G21-17 NutG20-5 Gear G20-18 Bearing G21-5 Bearing G21-18 Stop ScrewG20-6 Shaft G20-19 Plug G21-6 Nut G21-19 BushingG20-7 Ring G20-20 Bearing G21-7 Retainer G21-20 BearingG20-8 Bearing G20-21 Bearing G21-8 Retainer G21-21 PlugG20-9 Rod G20-22 Gear G21-9 Gear G21-22 BearingG20-10 Plates G20-23 Bearing G21-10 Bearing G21-23 GearG20-11 Plates G20-24 Plate G21-11 Gear G21-24 PlateG20-12 Sleeve G20-25 Key G21-12 Plate G21-25 BearingG20-13 Spring G20-26 Nut G21-13 Plates G21-26 Shoe

Fig. G22 Apron – First Pinion Assemblywithout Power Rapid Traverse

APRON - 1st PINIONASSEMBLY - WITHOUT P.R.T.


G22-1 Nut & Washer G22-12 BushingG22-2 Ring & Shim G22-13 ShaftG22-3 Bearing G22-14 NutG22-4 Washer G22-15 KeyG22-5 Bearing G22-16 DialG22-6 Washer G22-17 HandleG22-7 Handwheel G22-18 BracketG22-8 Ring G22-19 PlugG22-9 Pin G22-20 RingG22-10 Plug G22-21 BearingG22-11 Screw G22-22 Plug

41

TM 9-3416-245-14&P

PARTS LIST

Fig. G23 Compound Rest and Carriage

COMPOUND REST AND CARRIAGE


G23-1 Crank G23-26 Slide G23-51 BearingG23-2 Nut G23-27 Plug G23-52 BushingG23-3 Nut G23-28 Screw G23-53 BushingG23-4 Key G23-29 Nut G23-54 BallG23-5 Dial G23-30 Nut G23-55 KeyG23-6 Bushing G23-31 Wedge G23-56 BushingG23-7 Bushing G23-32 Strip G23-57 WasherG23-8 Bushing G23-33 Guard G23-58 HandleG23-9 Bearing G23-34 Wiper G23-59 KeyG23-10 Washer G23-35 Wiper G23-60 NutG23-11 Screw G23-36 Wiper G23-61 ScrewG23-12 Nut G23-37 Screw G23-62 NutG23-13 Plate G23-38 Bushing G23-63 WheelG23-14 Wiper G23-39 Shoe G23-64 DialG23-15 Pin G23-40 Cover G23-65 BushingG23-16 Screw G23-41 Nut G23-66 ScrewG23-17 Post G23-42 Bearing G23-67 GibG23-18 Collar G23-43 Bracket G23-68 ScrewG23-19 Collar G23-44 Bracket G23-69 GibG23-20 Wedge G23-45 Screw G23-70 StudG23-21 Slide G23-46 Gib G23-71 BearingG23-22 Plug G23-47 Carriage G23-72 Gear-23TG23-23 Plate G23-48 Pinion G23-73 SpacerG23-24 Wiper G23-49 BearingG23-25 Swivel G23-50 Shim

42

TM 9-3416-245-14&P

PARTS LIST

Fig. G25 Leadscrew SupportsLEADSCREW SUPPORTS


G25-1 Bushing G25-13 SupportG25-2 Latch Head End G25-14 PinG25-3 Spring G25-15 GibG25-4 Pin G25-16 SleeveG25-5 Bushing G25-17 BushingG25-6 Gib G25-18 PlateG25-7 Pin G25-19 SupportG25-8 Bushing G25-20 BushingG25-9 Latch Tail End G25-21 BushingG25-10 Plate G25-22 PinG25-11 Sleeve G25-23 BushingG25-12 Bushing G25-24 Bushing

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TM 9-3416-245-14&PLATHE

Fig. G24 Tailstock

TAILSTOCK


G24-150 Tailstock Top G24-182 Washer G24-214 ShaftG24-151 Spindle G24-183 Spindle Nut G24-215 GearG24-152 Center G24-184 Plate G24-216 ShaftG24-153 Retainer G24-185 Plug G24-217 BearingG24-154 Wiper G24-186 Ball G24-218 RetainerG24-155 Clamp G24-187 Ball* G24-219 PlugG24-156 Gib G24-188 Spring* G24-220 HandwheelG24-157 Plate G24-189 Control Unit G24-221 GasketG24-158 Plug G24-190 Key G24-222 RetainerG24-159 Washer G24-191 Nut G24-223 SleeveG24-160 Gear G24-192 Shaft* G24-224 SealG24-161 Key G24-193 Plug G24-225 Mounting PlateG24-162 Bearing G24-194 Handle G24-226 GasketG24-163 Oiler G24-195 Handle G24-227 Clamp ScrewG24-164 Pump G24-196 Collar G24-228 NutG24-165 Window G24-197 Bearing G24-229 WasherG24-166 Bearing G24-198 Mover Bracket G24-230 KeyG24-167 Retainer G24-199 Washer G24-231 Rear BushingG24-168 Shim G24-200 Mover Pinion G24-232 Front BushingG24-169 Spacer G24-201 Support G24-233 WasherG24-170 Nut G24-202 Tailstock Base G24-234 NutG24-171 Shaft G24-203 Stud G24-235 LeverG24-172 Key G24-204 Worm Gear G24-236 KnobG24-173 Gear G24-205 Bearing G24-237 RetainerG24-174 Spindle Screw G24-206 Worm G24-238 ShimG24-175 Nut G24-207 Washer G24-239 Front PlateG24-176 Key G24-208 Bushing G24-240 GasketG24-177 Gear G24-209 Bushing G24-241 BearingG24-178 Cap G24-210 Bushing G24-242 KeyG24-179 Cover G24-211 Bushing G24-243 GearG24-180 Gasket G24-212 Dial G24-244 WasherG24-181 Bearing G24-213 Nut G24-245 Bearing

* Two Speed44

TM 9-3416-245-14&PLATHE

TAILSTOCK


G24-246 Gear G24-255 Key* G24-264 Shim*G24-247 Snap Ring G24-256 Shaft* G24-265 Retainer*G24-248 Shaft G24-257 Bearing* G24-266 Gear*G24-249 Sleeve G24-258 Bearing* G24-267 Bushing*G24-250 Bearing G24-259 Gear* G24-268 Spacer *G24-251 Spacer* G24-260 Washer* G24-269 Spacer*G24-252 Bearing* G24-261 Key* G24-270 Key*G24-253 Snap Ring* G24-262 Shaft* G24-271 Bearing*G24-254 Gear* G24-263 Bearing** Two Speed

45

TM 9-3416-245-14&PLATHE

Fig. G26 Tail End Bracket

TAIL END BRACKET W/LEADSCREW REVERSE


G26-1 Lever G26-18 BearingG26-2 Knob G26-19 SealG26-3 Shaft G26-20 PlateG26-4 Bearing G26-21 SealG26-5 Bearing G26-22 HubG26-6 Bearing G26-23 BracketG26-7 Key G26-24 CollarG26-8 Sleeve G26-25 CollarG26-9 Cover G26-26 CollarG26-10 Spacer G26-27 PlateG26-11 Bearing G26-28 PlateG26-12 Plug G26-29 PinG26-13 Ring G26-30 PinG26-14 Plug G26-31 DialG26-15 Ring G26-32 BushingG26-16 Bearing G26-33 WheelG26-17 Bracket

46


Fig. G27 Head End Mechanical Control Bracket

HEAD END MECHANICAL CONTROL BRACKET


G27-1 Crank G27-12 Bearing G27-23 SpacerG27-2 Shaft G27-13 Ring G27-24 BearingG27-3 Pin G27-14 Gear G27-25 SleeveG27-4 Retainer G27-15 Key G27-26 ShimG27-5 Bearing G27-16 Knob G27-27 KeyG27-6 Ring G27-17 Gear G27-28 GearG27-7 Ring G27-18 Post G27-29 BearingG27-8 Bushing G27-19 Bracket G27-30 SpacerG27-9 Stud G27-20 Pin G27-31 HubG27-10 Pin G27-21 SegmentG27-11 Spacer G27-22 Spacer

47

TM 9-3416-245-14&PLATHE

Fig. G28 Taper Attachment -- General

TAPER ATTACHMENT -GENERAL


G28-1 Washer G28-14 PlateG28-2 Guard G28-15 ScrewG28-3 Clamp G28-16 KnobG28-4 Stud G28-17 BracketG28-5 Guide G28-18 ScaleG28-6 Gib G28-19 PointerG28-7 Guide G28-20 BarG28-8 Wiper G28-21 BracketG28-9 Plate G28-22 PlateG28-10 Guard G28-23 PlateG28-11 Screw G28-24 BoltG28-12 Scale G28-25 BarG28-13 Pointer G28-26 Collar

48


Fig. G29 Taper Attachments – Plain and Ball Bearing Sectionals

TAPER ATTACHMENTS-PLAIN AND BALL BEARING


G29-1 Screw G29-16 Trough G29-31 NutG29-2 Collar G29-17 Gib G29-32 GuideG29-3 Bearing G29-18 Guide G29-33 PlateG29-4 Bushing G29-19 Swivel G29-34 SwivelG29-5 Nut G29-20 Base G29-35 BaseG29-6 Gib G29-21 Way G29-36 PlateG29-7 Washer G29-22 Bracket G29-37 BracketG29-8 Screw G29-23 Pan G29-38 BearingG29-9 Nut G29-24 Collar G29-39 WedgeG29-10 Shoe G29-25 Bearing G29-40 GuideG29-11 Guide G29-26 Bushing G29-41 SwivelG29-12 Plate G29-27 Nut G29-42 BearingG29-13 Swivel G29-28 Bearing G29-43 WayG29-14 Plate G29-29 Washer G29-44 TroughG29-15 Bracket G29-30 Screw

49

TM 9-3416-245-14&PLATHE

Fig. G30 Taper Attachment – Crossfeed Screw

TAPER ATTACHMENT - CROSSFEED SCREW


G30-1 Hand Wheel G30-7 Pinion G30-13 KeyG30-2 Bushing G30-8 Bushing G30-14 WasherG30-3 Spiral Bushing G30-9 Dial G30-15 KeyG30-4 Bushing G30-10 Nut G30-16 BushingG30-5 Collar G30-11 Nut G30-17 KeyG30-6 Screw G30-12 Handle G30-18 Ball

Fig. G31 Dual Dials with and without Taper Attachment

DUAL DIALS


G31-1 Handwheel G31-11 Washer G31-21 Bearing*G31-2 Sleeve G31-12 Lock Nut G31-22 Key*G31-3 Key G31-13 Gear G31-23 Pinion*G31-4 Handle G31-14 Dial G31-24 Bushing#G31-5 Clip G31-15 Gear G31-25 Bushing#G31-6 Dial G31-16 Bushing G31-26 Collar#G31-7 Key G31-17 Stud G31-27 Pinion#G31-8 Pointer G31-18 Bushing* G31-28 Key#G31-9 Gear G31-19 Screw*G31-10 Nut G31-20 Bushing**Without Taper Attachment Only#With Taper Attachment Only

50


Fig. G32 Length Travel Accumulator – W/ and W/O PRTLENGTH TRAVEL ACCUMULATOR- W/AND W/O PRT


G32-30 Shaft G32-41 Seal G32-52 RingG32-31 Gear G32-42 Knob G32-53 BearingG32-32 Key G32-43 Shaft G32-54 ClutchG32-33 Key G32-44 Adapter G32-55 BracketG32-34 Clutch G32-45 Gear G32-56 SpringG32-35 Spring G32-46 Cover G32-57 BearingG32-36 Clutch G32-47 Accumulator G32-58 ShimG32-37 Adapter G32-48 Bearing G32-59 BearingG32-38 Bearing G32-49 Key G32-60 RingG32-39 Key G32-50 Handwheel G32-61 ShaftG32-40 Bearing G32-51 Handle

51

TM 9-3416-245-14&PLATHE

Fig. G33 Automatic Longitudinal StopsAUTOMATIC

LONGITUDINAL STOPS


G33-1 Dog G33-19 CollarG33-2 Dog G33-20 BearingG33-3 Dog G33-21 NutG33-4 Dog G33-22 BearingG33-5 Dog G33-23 ScrewG33-6 Nut G33-24 LeverG33-7 Plate G33-25 StudG33-8 Screw G33-26 KnobG33-9 Stud G33-27 SpacerG33-10 Slide G33-28 BracketG33-11 Pin G33-29 BracketG33-12 Lever G33-30 BedG33-13 Collar G33-31 HangerG33-14 Screw G33-32 BarG33-15 Bracket G33-33 ClampG33-16 Collar G33-34 PinG33-17 Shaft G33-35 GuardG33-18 Nut

52

TM 9-3416-245-14&PPARTS LI ST

Fig. G34 Multiple Cross Stops

MULTIPLE CROSS STOPS


G34-1 Dial G34-13 ScrewG34-2 Bushing G34-14 WrenchG34-3 Bracket G34-15 CoverG34-4 Shaft G34-16 BarG34-5 Bushing G34-17 ShaftG34-6 Bushing G34-18 BracketG34-7 Gear G34-19 BushingG34-8 Cover G34-20 DetentG34-9 Spacer G34-21 KeyG34-10 Key G34-22 BallG34-11 Finger G34-23 WasherG34-12 Dog G34-24 Cover

Fig. G35 Carriage Micrometer Stop

CARRIAGE MICROMETER STOP

Part No. Part Name

G35-1 PinG35-2 NutG35-3 BracketG35-4 ClampG35-5 PinG35-6 ScrewG35-7 DialG35-8 Stud

53

TM 9-3416-245-14&PLATHE

Fig. G36 Camlock Spindle NoseTAILSTOCK

ANTI-FRICTION CENTER

Part No. Part Name

G37-1 PlateG37-2 SpacerG37-3 BearingsG37-4 ShimG37-5 CapG37-6 SealG37-7 PlateG37-8 SpacerG37-9 SpacerG37-10 SpindleG37-11 Center

CAMLOCKSPINDLE NOSE

Part No. Part Name

G36-1 PlateG36-2 SpindleG36-3 CenterG36-4 BushingG36-5 SpringG36-6 StudG36-7 CamG36-8 Screw

Fig. G37 Tailstock Anti-friction Center

54


Fig. G38 Roller Jaw Steady RestPLAIN JAW

STEADY REST ½”-6”

Part No. Part Name

G39-1 TopG39-2 RodG39-3 PlugG39-4 KnobG39-5 ScrewG39-6 ScrewG39-7 JawG39-8 BottomG39-9 StudG39-10 Clamp

Fig. G40 Plain and Roller Jaw Steady Rests

ROLLER JAWSTEADY REST ½”6”

Part No. Part Name

G38-1 KnobG38-2 ScrewG38-3 JawG38-4 BearingG38-5 TopG38-6 StudG38-7 BoltG38-8 RodG38-9 BottomG38-10 StudG38-11 Clamp

Fig. G39 Plain Jaw Steady RestPLAIN AND ROLLER JAW

STEADY REST

Part No. Part Name

G40-1 RodG40-2 JawG40-3 JawG40-4 BottomG40-5 StudG40-6 ClampG40-7 JawG40-8 JawG40-9 TopG40-10 StudG40-11 BoltG40-12 BearingG40-13 StudG40-14 Screw

55

TM 9-3416-245-14&PLATHE

Fig. G41 Plain Jaw Follow Rest Fig. G42 Roller Jaw Follow RestPLAIN JAW

FOLLOW REST

Part No. Part Name

G41-1 ScrewG41-2 JawG41-3 BoltG41-4 KnobG41-5 Body

Fig. G43 Coolant Pump and Piping

ROLLER JAWFOLLOW REST

Part No. Part Name

G42-1 ScrewG42-2 JawG42-3 StudG42-4 BearingG42-5 BoltG42-6 KnobG42-7 Body

COOLANTPUMP AND PIPING

Part No. Part Name

G43-1 NozzleG43-2 JointG43-3 StopcockG43-4 JointG43-5 BracketG43-6 PendantG43-7 HoseG43-8 PumpG43-9 Support

56


Fig. G44 Constant Speed Electrical Controls

CONSTANT SPEEDELECTRICAL CONTROLS

Part No. Part Name

G44-1 KnobG44-2 BracketG44-3 KnobG44-4 LeverG44-5 OilerG44-6 HubG44-7 StudG44-8 CoverG44-9 BushingG44-10 KeyG44-11 CollarG44-12 LeverG44-13 HubG44-14 CollarG44-15 BushingG44-16 RodG44-17 BoxG44-18 SprocketG44-19 SprocketG44-20 PostG44-21 BushingG44-22 RollerG44-23 SpringG44-24 PostG44-25 Lever

57

TM 9-3416-245-14&P

By Order of the Secretary of the Army:

JOHN A. WICKHAM, JR.General, United States Army

Official: Chief of Staff

ROBERT M. JOYCEMajor General, United States Army

The Adjutant General

Distribution:To be distributed in accordance with DA Form 12-21 requirements for FSC/FSG 3400-IL.

U.S. GOVERNMENT PRINTING OFFICE: 1984-754-045:4013

The Metric System and Equivalents

Linear Measure Liquid Measure

1 centiliter = 10 milliters = .34 fl. ounce1 centimeter = 10 millimeters = .39 inch 1 deciliter = 10 centiliters = 3.38 fl. oun ces1 decimeter = 10 centimeters = 3.94 inches 1 liter = 10 deciliters = 33.81 fl. ounces1 meter = 10 decimeters = 39.37 inches 1 dekaliter = 10 liters = 2.64 gallons1 dekameter = 10 meters = 32.8 feet 1 hectoliter = 10 dekaliters = 26.42 gallons1 hectometer = 10 dekameters = 328.08 feet 1 kiloliter = 10 hectoliters = 264.18 gallons1 kilometer = 10 hectometers = 3,280.8 feet

Square MeasureWeights

1 sq. centimeter = 100 sq. millimeters = .155 sq. inch1 centigram = 10 milligrams = .15 grain 1 sq. decimeter = 100 sq. centimeters = 15.5 sq. inches1 decigram = 10 centigrams = 1.54 grains 1 sq. meter (centare) = 100 sq. decimeters = 10.76 sq. feet1 gram = 10 decigram = .035 ounce 1 sq. dekameter (are) = 100 sq. meters = 1,076.4 sq. feet1 decagram = 10 grams = .35 ounce 1 sq. hectometer (hectare) = 100 sq. dekameters = 2.47 acres1 hectogram = 10 decagrams = 3.52 ounces 1 sq. kilometer = 100 sq. hectometers = .386 sq. mile1 kilogram = 10 hectograms = 2.2 pounds1 quintal = 100 kilograms = 220.46 pounds Cubic Measure1 metric ton = 10 quintals = 1.1 short tons

1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch1 cu. decimeter = 1000 cu. centimeters = 61.02 cu. inches1 cu. meter = 1000 cu. decimeters = 35.31 cu. feet

Approximate Conversion Factors

To change To Multiply by To change To Multiply by

inches centimeters 2.540 ounce-inches Newton-meters .007062feet meters .305 centimeters inches .394yards meters .914 meters feet 3.280miles kilometers 1.609 meters yards 1.094square inches square centimeters 6.451 kilometers miles .621square feet square meters .093 square centimeters square inches .155square yards square meters .836 square meters square feet 10.764square miles square kilometers 2.590 square meters square yards 1.196acres square hectometers .405 square kilometers square miles .386cubic feet cubic meters .028 square hectometers acres 2.471cubic yards cubic meters .765 cubic meters cubic feet 35.315fluid ounces milliliters 29,573 cubic meters cubic yards 1.308pints liters .473 milliliters fluid ounces .034quarts liters .946 liters pints 2.113gallons liters 3.785 liters quarts 1.057ounces grams 28.349 liters gallons .264pounds kilograms .454 grams ounces .035short tons metric tons .907 kilograms pounds 2.205pound-feet Newton-meters 1.356 metric tons short tons 1.102pound-inches Newton-meters .11296

Temperature (Exact)

°F Fahrenheit 5/9 (after Celsius °Ctemperature subtracting 32) temperature

TM 9-3416-245-14&P ENGINE LATHE MODEL NUMBER 2516-20 (3416-00-242-8824)

PIN: 054740-000

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